Mercurial > hg > camir-aes2014
annotate toolboxes/FullBNT-1.0.7/KPMtools/mk_multi_index.m @ 0:e9a9cd732c1e tip
first hg version after svn
author | wolffd |
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date | Tue, 10 Feb 2015 15:05:51 +0000 |
parents | |
children |
rev | line source |
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wolffd@0 | 1 function index = mk_multi_index(n, dims, vals) |
wolffd@0 | 2 % MK_MULTI_INDEX Compute the indices of the submatrix where dims(i)=vals(i). |
wolffd@0 | 3 % index = mk_multi_index(n, dims, vals) |
wolffd@0 | 4 % |
wolffd@0 | 5 % Example: |
wolffd@0 | 6 % index = mk_multi_index(3, [1 3], [3 2]) |
wolffd@0 | 7 % gives index = {3, ':', 2}, which will select out dim 1 = 3 and dim 3 = 2 |
wolffd@0 | 8 % So if A(:,:,1)=[1 2;3 4; 5 6]; A(:,:,2)=[7 8; 9 10; 11 12] |
wolffd@0 | 9 % then A(index{:}) = [11 12]: |
wolffd@0 | 10 |
wolffd@0 | 11 if n==0 |
wolffd@0 | 12 index = { 1 }; |
wolffd@0 | 13 return; |
wolffd@0 | 14 end |
wolffd@0 | 15 |
wolffd@0 | 16 index = cell(1,n); |
wolffd@0 | 17 for i=1:n |
wolffd@0 | 18 index{i} = ':'; |
wolffd@0 | 19 end |
wolffd@0 | 20 for i=1:length(dims) |
wolffd@0 | 21 index{dims(i)} = vals(i); |
wolffd@0 | 22 end |
wolffd@0 | 23 |